It turns out that living in caves isnt just for proto-humans and al Qaida operatives; its also popular in the four corners area of these here United States. If you want to see how your neighbors to the near north are exploring low cost underground living, polygamy, geology and the joy of high explosives, you should check out this charming documentary. Its easily the best movie about cave-dwelling since Raquel Welch got all Paleolithic in One Million Years B.C.